/* ==========================================================================
   南宫看台 — 共享样式表 /assets/site.css
   语境：深夜看台 · 技术蓝图网格 · 老式记分牌机械感
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul[class], ol[class] {
  list-style: none;
  padding: 0;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

a { color: inherit; }

table {
  border-collapse: collapse;
  width: 100%;
}

hr {
  border: 0;
  border-top: 1px solid var(--line-blue);
  margin: 0;
}

/* ---------- 2. 变量 ---------- */
:root {
  /* 珠宝色分区 */
  --ink-night: #0E1B2C;
  --panel: #12263D;
  --line-blue: #1B3550;
  --grass: #7CFF6B;
  --grass-soft: #B6FFAA;
  --amber: #FF8A3D;
  --amber-soft: #FFB37A;
  --test: #8C86A8;
  --test-ink: #D8D3E8;
  --paper: #F2EFE7;
  --wine: #6B2E3A;
  --mist: #C9D4E0;

  /* 字体 */
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, "Times New Roman", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  /* 尺度 */
  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 3px;
  --hair: 1px solid var(--line-blue);

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --header-h: 64px;
}

/* ---------- 3. 中文排版基座 ---------- */
body {
  min-height: 100vh;
  background: var(--ink-night);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: clamp(15.5px, .35vw + 14.6px, 17px);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--paper);
}

h1 { font-size: clamp(36px, 5.6vw, 72px); }
h2 { font-size: clamp(26px, 3.2vw, 40px); }
h3 { font-size: clamp(19px, 1.6vw, 24px); line-height: 1.35; letter-spacing: -.005em; }
h4 { font-size: 17px; line-height: 1.45; font-weight: 700; }

p { max-width: 68ch; }

strong { font-weight: 700; color: var(--paper); }

a {
  color: var(--grass);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover { color: var(--grass-soft); }

::selection {
  background: var(--grass);
  color: var(--ink-night);
}

:focus-visible {
  outline: 2px solid var(--grass);
  outline-offset: 3px;
  border-radius: 2px;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -.01em;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--grass);
  margin: 0 0 12px;
}

.coord {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--grass);
}

.hairline {
  border: var(--hair);
}

.blueprint-bg {
  background-image:
    linear-gradient(rgba(27, 53, 80, .55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 53, 80, .55) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center;
}

/* ---------- 4. 布局基座 ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(36px, 5vw, 72px);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  align-items: start;
  gap: clamp(20px, 3.4vw, 48px);
}

.index-rail { min-width: 0; align-self: start; }
.main-col { min-width: 0; }

@media (min-width: 901px) {
  .index-rail {
    position: sticky;
    top: calc(var(--header-h) + 56px);
  }
}

@media (max-width: 900px) {
  .split { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 5. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(201, 212, 224, .72);
}

.crumbs li { display: flex; align-items: center; }

.crumbs li + li::before {
  content: "›";
  margin: 0 8px;
  color: var(--line-blue);
}

.crumbs a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--line-blue);
  padding-bottom: 1px;
}

.crumbs a:hover {
  color: var(--grass);
  border-bottom-color: var(--grass);
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease),
              border-color .2s var(--ease), transform .2s var(--ease);
}

.btn--primary {
  background: var(--grass);
  border-color: var(--grass);
  color: var(--ink-night);
}

.btn--primary:hover {
  background: var(--grass-soft);
  border-color: var(--grass-soft);
  color: var(--ink-night);
}

.btn--outline {
  background: transparent;
  border-color: var(--grass);
  color: var(--grass);
}

.btn--outline:hover {
  background: rgba(124, 255, 107, .14);
  color: var(--grass-soft);
}

.btn--ghost {
  background: var(--panel);
  border-color: var(--line-blue);
  color: var(--paper);
}

.btn--ghost:hover {
  border-color: var(--grass);
  color: var(--grass);
}

/* ---------- 7. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  line-height: 1.6;
  border: 1px solid currentColor;
  border-radius: 2px;
  white-space: nowrap;
}

.tag--wine {
  background: var(--wine);
  border-color: transparent;
  color: var(--paper);
}

.tag--test {
  background: var(--test);
  border-color: transparent;
  color: var(--test-ink);
}

.tag--live {
  color: var(--grass);
  background: rgba(124, 255, 107, .08);
}

.tag--score {
  color: var(--amber);
  background: rgba(255, 138, 61, .08);
}

/* ---------- 8. 卡片 ---------- */
.card {
  position: relative;
  background: var(--panel);
  border: var(--hair);
  border-radius: var(--radius);
  padding: clamp(18px, 2.2vw, 28px);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--line-blue);
}

.card--paper {
  background: var(--paper);
  border-color: rgba(14, 27, 44, .14);
  color: var(--ink-night);
}

.card--paper h2,
.card--paper h3,
.card--paper h4,
.card--paper strong { color: var(--ink-night); }

.card--paper a { color: var(--wine); }

.card--stack {
  box-shadow: 5px 5px 0 rgba(27, 53, 80, .85);
}

/* ---------- 9. 图片容器基础规则 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 10;
  border: var(--hair);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, #16324F 0%, #0E1B2C 62%, #0A1524 100%);
}

.media-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(242, 239, 231, .10) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(201, 212, 224, .55);
}

/* ---------- 10. 跳过链接 ---------- */
.skip-link {
  position: absolute;
  top: -72px;
  left: 16px;
  z-index: 300;
  padding: 10px 20px;
  background: var(--grass);
  color: var(--ink-night);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  border-radius: 2px;
  transition: top .18s var(--ease);
}

.skip-link:focus {
  top: 12px;
  color: var(--ink-night);
}

/* ---------- 11. 页头：紧凑命令栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(14, 27, 44, .96);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: var(--hair);
  color: var(--paper);
}

.command-bar {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  min-height: var(--header-h);
  padding: 0 var(--gutter);
}

/* 品牌署名 */
.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 6px 0;
  text-decoration: none;
  color: inherit;
}

.brand-lockup:hover { color: inherit; }

.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border: 1px solid var(--grass);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(124, 255, 107, .16), rgba(124, 255, 107, 0) 90%);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--grass);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .06em;
  color: var(--paper);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .2em;
  color: var(--mist);
  opacity: .7;
}

/* 导航 */
.site-nav {
  margin-inline: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0px, .4vw, 6px);
}

.nav-link {
  display: inline-block;
  padding: 9px 10px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .05em;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  color: var(--mist);
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.nav-link:hover {
  color: var(--paper);
  border-bottom-color: var(--line-blue);
}

.nav-link[aria-current="page"] {
  color: var(--grass);
  border-bottom-color: var(--grass);
}

/* 移动端目录按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  min-height: 40px;
  padding: 0 12px;
  background: var(--panel);
  border: 1px solid var(--line-blue);
  border-radius: 2px;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .14em;
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.nav-toggle:hover { border-color: var(--grass); }

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
  height: 13px;
}

.nav-toggle-bars i {
  display: block;
  height: 1.5px;
  width: 100%;
  background: var(--grass);
  border-radius: 1px;
  transition: transform .22s var(--ease), opacity .18s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

/* 右侧行动入口 */
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid var(--grass);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(124, 255, 107, .14), rgba(124, 255, 107, .02));
  color: var(--grass);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  white-space: nowrap;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.header-cta::after {
  content: "→";
  font-family: var(--font-mono);
  transition: transform .2s var(--ease);
}

.header-cta:hover {
  background: var(--grass);
  color: var(--ink-night);
}

.header-cta:hover::after { transform: translateX(3px); }

/* 横向赛事进度带 */
.round-strip {
  border-top: var(--hair);
  background: linear-gradient(90deg, rgba(18, 38, 61, .92), rgba(14, 27, 44, .55));
}

.round-strip-inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  min-height: 34px;
  padding: 0 var(--gutter);
  overflow-x: auto;
  scrollbar-width: none;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.round-strip-inner::-webkit-scrollbar { display: none; }

.round-label {
  flex: 0 0 auto;
  color: rgba(201, 212, 224, .62);
}

.round-track {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  margin: 0;
  padding: 0;
  list-style: none;
}

.round-node {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  color: rgba(201, 212, 224, .68);
}

.round-node + .round-node::before {
  content: "";
  display: inline-block;
  width: clamp(14px, 3vw, 44px);
  height: 1px;
  margin-inline: 10px;
  background: var(--line-blue);
}

.round-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line-blue);
}

.round-node--done { color: var(--grass); }
.round-node--done .round-dot {
  background: var(--grass);
  box-shadow: 0 0 0 3px rgba(124, 255, 107, .16);
}

.round-node--live { color: var(--amber); }
.round-node--live .round-dot {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 138, 61, .18);
}

.round-node--next { color: rgba(201, 212, 224, .6); }
.round-node--next .round-dot {
  background: transparent;
  border: 1px solid var(--mist);
}

.round-note {
  flex: 0 0 auto;
  margin-inline-start: auto;
  color: rgba(201, 212, 224, .42);
}

/* ---------- 12. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 104px);
  background: var(--ink-night);
  border-top: var(--hair);
  color: var(--mist);
  font-size: 14px;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: clamp(120px, 26vw, 300px);
  height: 2px;
  background: var(--grass);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(220px, 1.6fr) repeat(3, minmax(110px, 1fr));
  gap: clamp(24px, 3.6vw, 52px);
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 64px) var(--gutter) clamp(28px, 4vw, 44px);
}

.footer-brand { min-width: 0; }

.footer-brand-name {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .06em;
  color: var(--paper);
  max-width: none;
}

.footer-brand-sub {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--grass);
  opacity: .85;
  max-width: none;
}

.footer-summary {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(201, 212, 224, .82);
}

.footer-coord {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(201, 212, 224, .42);
  max-width: none;
}

.footer-col { min-width: 0; }

.footer-col-title {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: var(--hair);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(201, 212, 224, .55);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  display: inline-block;
  padding: 6px 0;
  font-size: 13.5px;
  letter-spacing: .03em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.footer-links a:hover {
  color: var(--grass);
  border-bottom-color: var(--grass);
}

/* 联系信息 */
.footer-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 18px clamp(20px, 3vw, 40px);
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(22px, 3vw, 32px) var(--gutter);
  border-top: var(--hair);
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(201, 212, 224, .5);
}

.contact-value {
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
  word-break: normal;
  overflow-wrap: anywhere;
}

.contact-note {
  grid-column: 1 / -1;
  max-width: 70ch;
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(201, 212, 224, .55);
}

.copy-btn {
  align-self: flex-start;
  margin-top: 3px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--line-blue);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.copy-btn:hover {
  border-color: var(--grass);
  color: var(--grass);
}

.copy-btn[data-copied="true"] {
  background: var(--grass);
  border-color: var(--grass);
  color: var(--ink-night);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 18px var(--gutter) clamp(28px, 4vw, 40px);
  border-top: var(--hair);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(201, 212, 224, .45);
}

.footer-legal p { margin: 0; max-width: none; }

/* ---------- 13. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  z-index: 70;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--panel);
  border: 1px solid var(--grass);
  border-radius: 2px;
  color: var(--grass);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .24s var(--ease), transform .24s var(--ease),
              visibility .24s var(--ease), background .2s var(--ease), color .2s var(--ease);
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  background: var(--grass);
  color: var(--ink-night);
}

/* ---------- 14. 滚动显现 ---------- */
html[data-reveal-ready] [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
}

html[data-reveal-ready] [data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: none;
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

/* ---------- 15. 响应式 ---------- */
@media (min-width: 981px) and (max-width: 1180px) {
  .nav-link { font-size: 12.5px; padding: 9px 7px; }
  .header-cta { font-size: 12px; padding: 0 12px; }
  .brand-sub { display: none; }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-flex;
    margin-inline-start: auto;
  }

  .header-cta { margin-inline-start: 8px; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: 8px var(--gutter) 22px;
    background: var(--panel);
    border-bottom: var(--hair);
    box-shadow: 0 22px 48px rgba(0, 0, 0, .5);
  }

  html[data-nav-ready] .site-nav { display: none; }
  html[data-nav-ready] .site-nav[data-open="true"] { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    display: block;
    padding: 15px 12px;
    font-size: 15px;
    letter-spacing: .04em;
    border-bottom: 1px solid var(--line-blue);
    border-left: 2px solid transparent;
  }

  .nav-link:hover {
    color: var(--paper);
    border-bottom-color: var(--line-blue);
  }

  .nav-link[aria-current="page"] {
    padding-left: 14px;
    color: var(--grass);
    border-bottom-color: var(--line-blue);
    border-left-color: var(--grass);
    background: rgba(124, 255, 107, .06);
  }
}

@media (max-width: 860px) {
  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .brand-sub { display: none; }
  .nav-toggle { padding: 0 10px; }
  .nav-toggle-text { display: none; }
  .header-cta {
    padding: 0 10px;
    font-size: 12px;
    letter-spacing: .04em;
  }
  .header-cta::after { display: none; }
  .round-strip-inner { font-size: 9.5px; letter-spacing: .1em; }
  .round-note { display: none; }
}

@media (max-width: 520px) {
  .footer-top {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .footer-contact { grid-template-columns: minmax(0, 1fr); }

  .footer-legal { font-size: 10px; letter-spacing: .06em; }
}

/* ---------- 16. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  html[data-reveal-ready] [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .to-top {
    transform: none;
  }

  .card:hover,
  .header-cta:hover::after {
    transform: none;
  }
}